Python Learning notes (i)

About Python

Python is a high-level scripting language that combines explanatory, interactive, and object-oriented

• Python is an interpreted language: This means that there is no compilation in the development process. Similar to the PHP and Perl languages.

• Python is an interactive language: This means that you can execute your program in a Python prompt directly interacting with the execution.

• Python is an object-oriented language: This means that Python supports object-oriented styles or code encapsulation in object programming techniques.

• Python is the language of beginners: Python is a great language for novice programmers, and it supports a wide range of application development, from simple word processing to WWW browser to gaming.

Python output

Python 2 print "Hello, world!" ;

Python3 Print("Hello, world!" );

Python. py file Start

#!/usr/bin/python
#-*-coding:utf-8-*-

Line and indent

Python's most distinctive feature is the use of indentation to represent blocks of code, without the need for curly braces ({}).

The number of spaces indented is mutable, but the statement of the same block must contain the same number of indent spaces

Python3 List

list1 = [< Span class= "hl-quotes" > ' google runoob" 19972000

< Span class= "Hl-code" > list data items do not need to have the same type

< Span class= "Hl-code" > access list elements List1[ 0 list2[1:5 ]   @1, starting from list[1] to 5 is the Fifth Element

< Span class= "Hl-code" > python3
/span>

< Span class= "Hl-code" > python a tuple similar to a list, except that elements of tuples cannot be modified

tup1 = (' Google ', ' Runoob ', 1997, + );

Python Learning Note (i)